Normalize `operator()` spelling in YT

As of the date of this PR, there are 4 different ways to spell parenthesis operator in YT

* `operator()(args...)` - 505 occasions
* `operator() (args...)` - 151 occasions
* `operator () (args...)` - 65 occasions
* `operator ()(args...)` - 6 occasions

As is apparent from this statistics, the first way is the most popular by far (69% of all matches). Furthermore, it is the most consistent with YT style guide <https://nda.ya.ru/t/YOfm_T4z7Syke2>.
commit_hash:f9f2f2a6822e88d6aba6777210a00d08c2911bc5

1 files changed, 2 insertions, 2 deletions

diff --git a/yt/cpp/mapreduce/client/structured_table_formats.cpp b/yt/cpp/mapreduce/client/structured_table_formats.cpp
index ea511398cc9..4f174f3d250 100644
--- a/yt/cpp/mapreduce/client/structured_table_formats.cpp
+++ b/yt/cpp/mapreduce/client/structured_table_formats.cpp
@@ -315,7 +315,7 @@ TString GetAddIOMethodName(EIODirection direction)
 struct TFormatBuilder::TFormatSwitcher
 {
     template <typename T>
-    auto operator() (const T& /*t*/) {
+    auto operator()(const T& /*t*/) {
         if constexpr (std::is_same_v<T, TTNodeStructuredRowStream>) {
             return &TFormatBuilder::CreateNodeFormat;
         } else if constexpr (std::is_same_v<T, TTYaMRRowStructuredRowStream>) {
@@ -570,7 +570,7 @@ std::pair<TFormat, TMaybe<TSmallJobFile>> TFormatBuilder::CreateProtobufFormat(
 struct TGetTableSchemaImpl
 {
     template <typename T>
-    TMaybe<TTableSchema> operator() (const T& description) {
+    TMaybe<TTableSchema> operator()(const T& description) {
         if constexpr (std::is_same_v<T, TUnspecifiedTableStructure>) {
             return Nothing();
         } else if constexpr (std::is_same_v<T, TProtobufTableStructure>) {